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J. MANTON.

SIGHT FOR FIRE ARMS.

No. 378,205. Patented Feb. 21, 1888.

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. WZZ7Z6JJ66. 8 [711172527 N, PETERS. Phcloiilhognphur, wuai pppppp c UNITED STATES PATENT OFFICE.

JOSEPH MANTON, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR OF ONE- IIALF TO CHARLES CARTER NEWTON, OF SAME PLACE.

SIGHT FOR FIRE-ARMS.

SPECIFICATION forming part of Letters Patent No. 378,205, dated February 21, 1888.

Application filed November 25, 1887. Serial No. 256,082. (No model.)

To aZZ whom it may concern:

Be it known that I, JOSEPH MANTON, a subject of the Queen of Great Britain, residing at the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented new and useful Improvements in Sights for Fire-Arms; and I do hereby declare that the following is a full, clear, and exact description of the same.

This invention has reference to a specificconstruction or arrangement of sights for rifles and other fire-arms to produce a combined sight and wind gage that is cheaper and susceptible of being more quickly adjusted than those at present in use, it being considered very important that the sight must be capable of being quickly adjusted both for military and sporting purposes.

In the drawings hereunto annexed similar letters of reference indicate like parts.

Figure 1 is a side elevation of an ordinary military sight having my invention attached thereto. Fig. 2 is a front elevation of the construction shown in Fig. 1. Figs. 3 to 10, inclusive, are details of construction.

a is the block, which is attached on the barrel of the fire-arm, to which is hinged at b the upright frame 0.

Thus far the parts mentioned are constructed and arranged in an ordinary manner, as at present in use.

My invention consists in providing a block, d, fitted to slide rather tightly between the two uprights ccof the frame 0, theinner sides of the uprights being made parallel and true to each other. This block is provided with flanges e, (which form a guide on the face of the uprights c,) and with a dovetailed projection, f, which is fitted to the groove 9 of a cross-bar, h, which cross-bar is provided with any V- shaped sight, t, and sight-lines h, as now in use, so that by sliding the block d up and down between the uprights c c the height of the bar h may be adjusted for the elevation required for the fire-arm for the distance of the object, while the bar It may be set transversely, as indicated by the dotted lines in Fig. 2, to form a wind-gage.

l is a small screw inserted in the bar h (see Fig. 5) to prevent it from being pushed off the projection f.

The section shown in Fig. 6 is taken at line 00, Fig. 3, and the section shown in Fig. 7 is taken on line y, Fig. 5.

On the top, as shown in Fig. 3, and on the 5 bottom, as shown in Fig. 4, of the bar h, if desired, any suitable scales, at, may be marked upon them, the zero-marks n of which are placed to agree with the inner edges of the uprights a, as shown, when the sight i is in the center, and by the scales or. the lateral devlation, when such is employed, may be adjusted with great accuracy.

As shown in Fig. 6, a small set-screw 0. passes through and is screwed into a screwed opening, 1), in the block d, by means of which the position of the bar h on the projectlon f may be further secured. This screw is not necessary if the parts are properly fitted, and therefore may or may not be provided, as desired.

I would here state that it is not new to provide sights with supports bearing the sightplate laterally adjustable on a vertically-adjustable supporting-plate.

What I claim, and wish to secure by Letters Patent, is as follows:

1. In sights for fire-arms, the combination of a bar provided with ordinary sights and marks, also havingadovetailed groove, a block having a dovetailed projection arrangedto fit the dovetailed groove of the said bar, the same being so arranged that the said bar may slide transversely upon the said dovetailed pr0jection, and uprights c 0', arranged to form a guide to the said block in its vertical move ment, the whole substantially as described.

2. In sights for fire-arms, the combination of the uprights c a, block d, arranged to slide between and be guided by the said uprights, and provided with a dovetailed projection, f, and flanges 0, bar h, provided with dovetailed groove 9, fitted to slide on the dovetailed projection f, the whole substantially as described.

3. In sights for fire-arms, the combinatlon 95 of the uprights c 0, block d, arranged to slide between the said uprights, and provided with a dovetailed projection, f, and flanges 6, also having set-screw 0, with bar h, having groove 9, arranged to slide upon the projection f, the 100 whole substantially as described.

JOSEPH MANTON.

\Vitnesses:

CHARLES G. O. SIMPSON, L. J 0s. MARIEN. 

